JP6116370B2 - Cup-shaped container, method for opening cup-shaped container, and method for sealing cup-shaped container - Google Patents

Description

The present invention relates to a cup-shaped container , a method for opening a cup-shaped container, and a method for sealing a cup-shaped container .

The cup-shaped container is known as a container for storing food (contents) such as jelly and yogurt, and includes a bottomed cylindrical container body whose opening is closed by a sheet body. And when using, for example, it becomes possible to take out the contents by peeling the sheet body while holding the container body. However, at the time of opening to peel off the sheet body, a part of the contents (including a liquid such as a storage solution stored together with the contents) may be scattered outside.
For example, in a jelly or the like, particularly for cup-shaped containers that are filled with the contents so that no gap is formed between the contents and the sheet body, the contents are scattered to the outside. Is required.

  Thus, for example, a cup-shaped container is known in which the body portion of the container body is formed in a horizontally long elliptical shape having elasticity as described in Patent Document 1 below. According to this cup-shaped container, the internal volume of the container body is increased by applying an external force radially inward with respect to the body part and elastically deforming the body part from a horizontally long elliptical shape to a circular shape in cross-sectional view. Is possible. Thereby, the upper surface of the contents can be lowered, and scattering to the outside at the time of opening can be suppressed.

JP-A-10-324369

  However, in the above-described conventional cup-shaped container, it is necessary to keep gripping the body part and keep elastic deformation at the time of opening, so that it is difficult to use and the body part is deformed and deformed into a horizontally long elliptical shape. In some cases, the contents were scattered.

This invention is made | formed in view of such a situation, The objective is the cup-shaped container which can suppress the scattering of the content more effectively, the opening method of a cup-shaped container, and a cup shape. It is to provide a method for sealing a container .

In order to achieve the above object, the present invention provides the following means.
(1) The cup-shaped container according to the present invention has a bottomed cylindrical container body in which contents are stored, and a sheet body that is formed at the upper end opening edge of the container body and closes the opening of the container body. An annular flange that can be fixed, and an inversion deformable portion is formed on the bottom of the container body that can be inverted and deformed toward the outside of the container, and the bottom wall of the bottom is formed on the outer peripheral edge. A ring-shaped grounding portion that is positioned, a rising peripheral wall portion that extends from the inside in the radial direction and extends upward, and a cylindrical tube-like depression that is continuous with the upper end portion of the rising peripheral wall portion and bulges upward. The recessed cylindrical portion is connected to an upper end portion of the rising peripheral wall portion via a bent portion protruding upward, and is capable of being inverted and deformed around the bent portion, and the inverted deformable portion It functions as .

  According to the cup-shaped container according to the present invention, the reversal deformation portion is removed from the container by increasing the internal pressure of the container body, for example, from when the contents are stored in the container body until opening, or immediately before opening. By reversing and deforming toward the direction, the internal volume of the container body can be increased. Thereby, the upper surface of a content can be lowered | hung and it can suppress that a content scatters at the time of opening. In particular, since the reverse deformation part reversely deforms toward the outside of the container, the state is maintained once it is deformed. Therefore, the upper surface of the contents can be kept lowered, and the scattering of the contents at the time of opening can be effectively suppressed. Also, for example, even when the reverse deformation portion is reversed and deformed by gripping the container body at the time of opening, unlike the conventional one, it is not necessary to continue to grip the container body and continue to apply external force, so that it is easy to use. Excellent in convenience.

Further, for example, when the internal pressure of the container body rises, the depressed cylinder part is inverted and deformed downward (toward the container outward) around the bent part, thereby increasing the internal volume of the container body, The upper surface of the can be lowered. As a result, scattering of contents at the time of opening can be suppressed. In particular, the depressed cylinder part is formed in a top cylinder shape that bulges upward, and is connected to the upper end part of the rising peripheral wall part via a bent part, so that the internal pressure of the container body increases, etc. Easy to reverse and deform smoothly. Therefore, for example, even immediately before opening, the upper surface of the contents can be quickly lowered, and scattering can be reliably suppressed. Furthermore, since the depression cylinder part formed in the bottom wall part of a container body which is hard to touch is used as the reverse deformation part, it can suppress that the design property of a container body falls.

(2) In the cup-shaped container according to the present invention, the container body is preferably a sheet molded body formed by thermoforming a sheet material.
In this case, since the container body can be formed by thermoforming (thermoforming molding) using a sheet material, it can be manufactured efficiently and productivity can be increased.

(3) The cup-shaped container opening method according to the present invention is detachably fixed to a bottomed cylindrical container body in which contents are stored and an annular flange formed at the upper end opening edge of the container body. A sheet body that seals the contents by closing the opening of the container body, and a bottom portion of the container body is formed with a reversal deformable portion that can be reversibly deformed toward the outside of the container, and the bottom portion The bottom wall portion of the ring has an annular grounding portion located at the outer peripheral edge portion, a rising peripheral wall portion extending from the radial inner side to the grounding portion and extending upward, and an upper end portion of the rising peripheral wall portion extending upward. A cylindrical tube-like depression that swells, and the depression cylinder is connected to the upper end of the rising peripheral wall via a bent portion protruding upward, with the bent portion as the center. A cup-shaped container that can be inverted and deformed and functions as the inversion deforming portion. The step of reversing the reversal deformation part toward the outside of the container around the bent part by increasing the internal pressure of the container body, and after the reversal deformation part is reversibly deformed And opening the sheet body by peeling the sheet body from the flange.
(4) The cup-shaped container sealing method according to the present invention is detachably fixed to a bottomed cylindrical container body in which contents are stored and an annular flange formed at the upper end opening edge of the container body. A sheet body that seals the contents by closing the opening of the container body, and a bottom portion of the container body is formed with a reversal deformable portion that can be reversibly deformed toward the outside of the container, and the bottom portion The bottom wall portion of the ring has an annular grounding portion located at the outer peripheral edge portion, a rising peripheral wall portion extending from the radial inner side to the grounding portion and extending upward, and an upper end portion of the rising peripheral wall portion extending upward. A cylindrical tube-like depression that swells, and the depression cylinder is connected to the upper end of the rising peripheral wall via a bent portion protruding upward, with the bent portion as the center. A cup-shaped container that can be inverted and deformed and functions as the inversion deforming portion. The container is formed in a state where the inversion deformed portion is deformed in advance toward the outside of the container with the bent portion as the center, and then the bent portion is centered. The reversal deformed portion is reversibly deformed toward the inside of the container, or the reversibly deformed portion formed in a state of being deformed in advance toward the outside of the container centering on the bent portion After reversing and deforming toward the direction, filling the contents into the container, and after filling the contents, the sheet body is fixed to the flange to close the opening of the container, And a step of sealing the contents.

According to the present invention , scattering of contents can be more effectively suppressed.

It is a longitudinal half sectional view showing an embodiment of a cup-shaped container concerning the present invention. It is a top view (state which removed the sheet | seat body) of the container body in the cup-shaped container shown in FIG. It is the longitudinal cross-sectional view which expanded the bottom part side of the container body shown in FIG. It is a figure which shows the state which peeled the sheet | seat body from the state shown in FIG.

Hereinafter, embodiments of a cup-shaped container according to the present invention will be described with reference to the drawings.
[Composition of cup-shaped container]
As shown in FIG. 1, the cup-shaped container 1 of this embodiment includes a bottomed cylindrical container body 2 in which contents (not shown) are stored, and a sheet body 3 that closes the opening of the container body 2. I have.

  The sheet body 3 is not an indispensable member constituting the cup-shaped container 1. Examples of the contents include foods such as jelly and yogurt, but are not limited to this case. Further, in the following description, the upper surface of the content means the upper surface of the content itself stored in the container body 2 or the liquid level of a storage solution stored together with the content.

  Hereinafter, a straight line passing through the center of the cross section of the container body 2 is referred to as a container axis O, and the sheet body 3 side along the container axis O is referred to as an upper side, and the bottom 11 side of the container body 2 is referred to as a lower side. A direction perpendicular to the container axis O is referred to as a radial direction, and a direction around the container axis O is referred to as a circumferential direction.

(Container)
The container body 2 is formed of, for example, a synthetic resin material, and is formed in a bottomed cylindrical shape opened upward at the trunk portion 10 and the bottom portion 11.
As shown in FIGS. 1 and 2, the body portion 10 is connected to the body portion 15 formed in a hexagonal shape in cross section and the upper end portion of the body portion 15, and is formed in a circular shape in cross section. An upper portion 16. The trunk portion main body 15 is formed in a tapered shape that gradually decreases in diameter as it goes downward from the connection portion with the upper portion 16. An annular flange 17 that protrudes radially outward and extends along the circumferential direction is formed at the upper end opening edge of the upper portion 16.

  As shown in FIGS. 1 to 3, the bottom portion 11 includes a bottom wall portion 20 that closes the lower end opening portion of the trunk portion main body 15 and has an outer peripheral edge portion as a grounding portion 21. The bottom wall portion 20 is connected to the ground contact portion 21 from the inside in the radial direction and extends upward, and the bottom wall portion 20 is connected to the upper end portion of the rising peripheral wall portion 22 and bulges upward. And a cylindrical portion 23.

  The grounding portion 21 has an inner peripheral shape connected to the rising peripheral wall portion 22 in a circular shape in plan view, and an outer peripheral shape connected to the lower end portion of the trunk body 15 is a hexagonal shape following the shape of the trunk body 15. Is formed. The rising peripheral wall portion 22 is formed in a cylindrical shape that gradually decreases in diameter from the connecting portion with the grounding portion 21 upward.

The depressed cylinder part 23 is formed in a cylindrical shape with a depressed peripheral wall part 23a and a top wall 23b connected to the upper end part of the depressed peripheral wall part 23a. The depressed peripheral wall portion 23a is connected to the upper end portion of the rising peripheral wall portion 22 via a bent portion 25 protruding upward, and gradually decreases in diameter from the connecting portion with the bent portion 25 upward. The portion is connected to the outer peripheral edge of the top wall 23b.
The depressed cylindrical portion 23 configured as described above can be inverted and deformed downward (toward the outside of the container) with the bent portion 25 as a center. That is, the depressed cylinder portion 23 functions as a reverse deformation portion that can be reversely deformed toward the outside of the container, and for example, reversely deforms as the internal pressure of the container body 2 increases.
In addition, the shape of the depressed cylinder part 23 is not limited to the above-mentioned case, For example, the shape which swells in a cup shape or a dome shape (hemisphere) upward may be sufficient, without providing the top wall 23b.

(Sheet body)
As shown in FIG. 1, the sheet body 3 is, for example, a single layer or a laminated sheet of synthetic resin, or a laminated sheet in which a metal thin film layer and a synthetic resin layer are laminated, and the upper surface of the flange 17 in the container body 2. It is fixed so that it can be peeled off. Thereby, the opening of the container body 2 is closed and the contents are sealed.
The fixing method includes, for example, a method such as pressure bonding, thermal welding, and adhesion. However, the fixing method is not limited to any method as long as it can be fixed in a peelable manner.

[Operation of cup-shaped container]
Next, the operation of the cup-shaped container 1 configured as described above will be described.
According to this cup-shaped container 1, for example, as shown in FIG. 4, while holding the container body 2, the sheet body 3 can be opened from the flange 17, and the contents can be taken out. However, at the time of opening, it is possible to lower the upper surface of the contents by increasing the internal pressure of the container body 2 by pressing the body portion 10 of the container body 2 radially inward before peeling the sheet body 3. It becomes.

Specifically, when the internal pressure of the container body 2 is increased, as shown in FIG. 3, the depressed cylindrical portion 23 that is the reverse deformation portion can be reversely deformed downward with the bent portion 25 as the center, Thereby, the internal volume of the container body 2 can be increased and the upper surface of the contents can be lowered. As a result, scattering of contents at the time of opening can be suppressed.
In particular, since the depressed cylinder portion 23 is inverted and deformed downward toward the outside of the container, the state is maintained once deformed as shown in FIG. Therefore, the upper surface of the contents can be kept lowered, and the scattering of the contents at the time of opening can be effectively suppressed. Further, unlike the conventional one, it is not necessary to keep gripping the container body 2 and continue to apply external force, so that it is easy to use and excellent in convenience.

Furthermore, since the depressed cylinder part 23 is formed in a crested cylindrical shape that bulges upward, and is connected to the upper end part of the rising peripheral wall part 22 via the bent part 25 protruding upward, As the internal pressure of the container body 2 rises, it is easy to reverse and deform smoothly. Accordingly, even immediately before the sheet body 3 is peeled off, the upper surface of the contents can be quickly lowered, and scattering can be reliably suppressed.
In addition, since the depressed cylindrical portion 23 formed on the bottom wall portion 20 of the container body 2 that is difficult to touch the human body is an inverted deformation portion, it is possible to suppress the design of the container body 2 from being deteriorated.

  In addition, at the time of reverse deformation, the depressed cylindrical portion 23 may be formed so as not to protrude downward from the grounding portion 21, or may be formed to protrude downward from the grounding portion 21.

  By the way, in the above description, at the time of opening, the inner pressure of the container body 2 is increased by pressing the body portion 10 of the container body 2 inward in the radial direction immediately before the sheet body 3 is peeled off. Although the case where the upper surface of the contents is lowered by being inverted and deformed has been described as an example, the present invention is not limited to this case. In other words, the contents may be inverted and deformed after the contents are stored in the container body 2 until opening.

For example, when the contents are stored in the container body 2 and then reversely deformed until the container is opened, for example, after the contents (heated to a predetermined temperature) are filled into the container body 2, the filling pressure is increased. Alternatively, the depressed cylindrical portion 23 may be inverted and deformed using the temperature, weight, etc. of the contents. Moreover, you may reversely deform the depression cylinder part 23 by the internal pressure rise of the container body 2 in a heat sterilization process, the process of pressing the container body 2 from the outside before shipment. In these cases, the contents can be shipped with the top surface of the contents lowered, and the contents can be similarly prevented from being scattered during subsequent opening.
Further, after the depressed cylinder portion 23 was molded in the state shown in FIG. 4, before or after filling the contents, the depressed cylinder portion 23 was inverted and deformed to the state shown in FIG. 1, and then the contents were filled. The container body 2 may be sealed with the sheet body 3.

  The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

For example, in the above-described embodiment, the case where the depressed cylindrical portion 23 formed on the bottom wall portion 20 of the container body 2 is an inverted deformation portion has been described as an example. However, instead of the depressed cylindrical portion 23, the container body 2 A reverse deformation portion may be formed in the body portion 10 of the container body, or a reverse deformation portion may be formed in the body portion 10 of the container body 2 together with the depressed cylindrical portion 23.
In addition, when forming a reverse deformation part in the trunk | drum 10, what is necessary is just to form so that it may reversely deform toward the radial direction outer side, for example in at least one part of the trunk | drum main body 15. FIG. However, as described above, it is preferable from the viewpoint of design to be provided on the bottom 11 that is difficult to touch.

Moreover, in the said embodiment, although the trunk | drum main body 15 of the container body 2 was made into the cross-sectional view hexagonal shape, it is not limited to this shape, For example, polygonal shapes other than a hexagonal shape may be sufficient, and a cross-sectional view circle A shape, an ellipse shape, etc. may be sufficient.
The container body 2 may be a sheet molded body formed by thermoforming (thermoforming molding) a synthetic resin sheet material. In this case, since the container body 2 can be efficiently manufactured by thermoforming molding, the productivity of the cup-shaped container 1 can be increased.

DESCRIPTION OF SYMBOLS 1 ... Cup-shaped container 2 ... Container body 10 ... The trunk | drum of a container body 11 ... Bottom part of container body 17 ... Flange 20 ... Bottom wall part 21 ... Grounding part 22 ... Standing peripheral wall part 23 ... Recessed cylinder part (inversion deformation part)
25 ... Bent part

Claims (4)

A bottomed cylindrical container for storing contents,
An annular flange that is formed at the upper end opening edge of the container body and to which a sheet body that closes the opening of the container body is releasably fixed;
At the bottom of the container body, an inversion deformable portion that can be inverted and deformed toward the outside of the container is formed ,
The bottom wall of the bottom is
An annular grounding portion located at the outer periphery,
A rising peripheral wall portion extending from the radially inner side to the grounding portion and extending upward;
A crested cylindrical portion that is continuous with the upper end portion of the rising peripheral wall portion and bulges upward, and
The depressed cylindrical portion is connected to the upper end portion of the rising peripheral wall portion via a bent portion protruding upward, and can be reversed and deformed around the bent portion, and functions as the reversed deformed portion. A cup-shaped container. The cup-shaped container according to claim 1 ,
The cup body is a cup-shaped container formed by thermoforming a sheet material. A bottomed cylindrical container body in which the contents are stored and an annular flange formed on the upper end opening edge of the container body are detachably fixed, and the opening of the container body is closed to seal the contents. And a sheet body
At the bottom of the container body, an inversion deformable portion that can be inverted and deformed toward the outside of the container is formed,
The bottom wall portion of the bottom portion is connected to the annular grounding portion located at the outer peripheral edge portion, the rising peripheral wall portion extending from the radially inner side to the grounding portion and extending upward, and the upper end portion of the rising peripheral wall portion. A crested cylindrical portion that bulges toward the top, and
The cup that is connected to the upper end portion of the rising peripheral wall portion through a bent portion that protrudes upward and that can be reversed and deformed around the bent portion, and functions as the reversed deformed portion. A method of opening the container,
A step of reversing and deforming the reversal deformed portion toward the outside of the container around the bent portion by increasing the internal pressure of the container body;
And a step of opening the sheet body by peeling the sheet body from the flange after the reverse deformation portion is reversely deformed. A bottomed cylindrical container body in which the contents are stored and an annular flange formed on the upper end opening edge of the container body are detachably fixed, and the opening of the container body is closed to seal the contents. And a sheet body
At the bottom of the container body, an inversion deformable portion that can be inverted and deformed toward the outside of the container is formed,
The bottom wall portion of the bottom portion is connected to the annular grounding portion located at the outer peripheral edge portion, the rising peripheral wall portion extending from the radially inner side to the grounding portion and extending upward, and the upper end portion of the rising peripheral wall portion. A crested cylindrical portion that bulges toward the top, and
The cup that is connected to the upper end portion of the rising peripheral wall portion through a bent portion that protrudes upward and that can be reversed and deformed around the bent portion, and functions as the reversed deformed portion. A sealing method for a container,
After filling the contents of the container formed in a state where the reversing deformation part is deformed in advance toward the outside of the container around the bending part, the reversing deformation part is placed inside the container around the bending part. Inverted and deformed toward the outer side, or the inverted and deformed part molded in a state deformed in advance toward the outside of the container with the bent part as the center, and inverted and deformed toward the inner side of the container with the bent part as the center. And filling the container with the contents;
A method of sealing a cup-shaped container, comprising: a step of fixing the sheet body to the flange after filling the contents, closing an opening of the container body, and sealing the contents.

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